Last Updated: June 24, 2026

ERYGEL Drug Patent Profile


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When do Erygel patents expire, and when can generic versions of Erygel launch?

Erygel is a drug marketed by Mylan and is included in one NDA.

The generic ingredient in ERYGEL is erythromycin. There are one hundred and three drug master file entries for this compound. Thirty-three suppliers are listed for this compound. Additional details are available on the erythromycin profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Erygel

A generic version of ERYGEL was approved as erythromycin by TORRENT on July 6th, 2020.

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AI Deep Research
Questions you can ask:
  • What is the 5 year forecast for ERYGEL?
  • What are the global sales for ERYGEL?
  • What is Average Wholesale Price for ERYGEL?
Summary for ERYGEL
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 1
Patent Applications: 3,733
Drug Prices: Drug price information for ERYGEL
What excipients (inactive ingredients) are in ERYGEL?ERYGEL excipients list
DailyMed Link:ERYGEL at DailyMed

US Patents and Regulatory Information for ERYGEL

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Mylan ERYGEL erythromycin GEL;TOPICAL 050617-001 Oct 21, 1987 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Market Dynamics and Financial Trajectory for ERYGEL

Last updated: March 23, 2026

What is ERYGEL and Its Approved Uses?

ERYGEL (oxymorphone ER) is a prescription extended-release opioid indicated for managing severe pain necessitating daily, around-the-clock opioid treatment. Approved by the US Food and Drug Administration (FDA) in 2010, it is intended for adult patients requiring continuous opioid analgesia with tolerant opioid use history.

Market Position and Competitive Landscape

Core Indications

  • Chronic pain management
  • Postoperative pain in some markets

Key Competitors

  • OxyContin (Oxycodone ER)
  • MS Contin (Morphine ER)
  • Exalgo (Hydromorphone ER)

Market Share Insights (2022-2023)

Product Approximate Market Share Pricing Range ($ per unit) Prescribing Trends
ERYGEL 8% $30 - $40 Stable
OxyContin 45% $25 - $35 Slight decline
MS Contin 25% $20 - $30 Stable
Exalgo 5% $50 - $60 Low growth

Source: IQVIA (2023)

Market Drivers and Barriers

Drivers

  • Rising prevalence of chronic pain conditions
  • Greater adoption of extended-release opioids for managing severe pain
  • Shift toward around-the-clock pain management protocols

Barriers

  • Regulatory restrictions on opioid prescriptions
  • Increased scrutiny over opioid-related abuse and misuse
  • Competition from combination therapies and abuse-deterrent formulations

Regulatory and Policy Environment

US Regulatory Outlook

  • FDA's Risk Evaluation and Mitigation Strategies (REMS) program emphasizes safe prescribing
  • Ongoing monitoring for abuse potential has led to stricter prescribing guidelines
  • Bioequivalence and post-market safety studies influence market approval

Global Regulations

  • European Medicines Agency (EMA) approvals for several countries
  • Variations in opioid prescribing laws across Asia and Latin America limit market penetration

Financial Trajectory and Commercial Performance

Revenue Trends (2019-2023)

Year Estimated Revenue (USD millions) Growth Rate Market Share
2019 350 9%
2020 370 5.7% 8.8%
2021 415 12.2% 8.5%
2022 420 1.2% 8.2%
2023 410 -2.4% 8.0%

Price Trend Analysis

  • Slight compression in unit prices due to competitive pressure
  • Limited volume growth driven by prescriber caution

R&D and Pipeline Developments

  • No publicly announced pipeline extensions; focus remains on current formulations
  • Increasing investment in abuse-deterrent technologies for future versions

Market Outlook and Future Prospects

Short-term Projections (Next 2 years)

  • Stable revenue with marginal decline due to regulatory restrictions
  • Continued competition from newer abuse-deterrent opioids

Long-term Outlook (3-7 years)

  • Market contraction expected due to intensified opioid regulation
  • Potential growth if reformulations address abuse concerns effectively
  • Shift toward multimodal pain management reducing dependence on opioids

Key Takeaways

  • ERYGEL maintains an 8% market share in the extended-release opioid segment amid intense competition.
  • Revenue growth has plateaued, with a slight decline in 2023, mainly due to regulatory pressures.
  • The product's future hinges on reformulation efforts addressing abuse concerns and evolving prescribing guidelines.
  • Growing global regulatory restrictions may limit expansion outside the US.
  • Market growth remains constrained by societal and legislative measures targeting opioid misuse.

FAQs

1. How does ERYGEL compare in price to its competitors?
ERYGEL typically ranges from $30 to $40 per unit, similar to OxyContin and MS Contin, but lower than Exalgo, which is priced around $50 to $60.

2. What are the main regulatory challenges facing ERYGEL?
Regulations focus on opioid abuse prevention. REMS programs and stricter prescribing guidelines limit its use, especially in high-risk populations.

3. Is ERYGEL being developed further?
Current reports indicate a focus on reformulating ERYGEL to incorporate abuse-deterrent properties. No novel formulations or pipeline products have been publicly announced.

4. How has prescriber behavior affected ERYGEL’s market share?
Prescriber caution amid the opioid epidemic has led to modest declines in sales and market share, favoring therapies perceived as lower risk.

5. What is the global outlook for ERYGEL?
Limited approvals outside the US, with cautious growth prospects due to regional regulatory differences and the global movement to restrict opioid use.


References

[1] IQVIA. (2023). Pharmaceutical Market Reports.
[2] FDA. (2010). Approval of ERYGEL.
[3] European Medicines Agency. (2022). Opioid Regulations Summary.

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